Strain Difference in the Embryonic Viability in the Rat Fed the High Energy Diet

概要

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To elucidate the mechanism of and to study the method preventing the high embryonic loss in swine, the authors are investigating to obtain some basic informations on this aspect using rats.The embryonic loss in swine is estimated to be 30 to 50% on full term of pregnancy1). Approximately 70% of the total embryonic loss occurs prior to day 25 of pregnancy2). High energy intake in swine has usually led to an increased ovulation rate and a higher percentage of embryonic loss3, 4). Approximately 70% of the total loss (32%) in gilts fed the high energy diet occurred prior to day 25 of pregnancy5). The authors found that most of the total embryonic loss in the rats fed the high energy diet occurred in the first third of pregnancy6) and the loss during this stage was affected by dietary calorie-protein ratios7).This study was designed to determine the strain difference in the embryonic viability in the rats fed the high energy diet.
社団法人日本畜産学会の論文